Authorities said they've received several reports of students who said their drinks were spiked with an unknown drug while they were at off-campus parties.

Police said they have not received complaints directly from alleged victims, and they don't know what drugs are involved because victims are not being immediately tested.

Campus police sent out an email to university employees and students, urging caution when drinking.

Many students who said they have heard about the alert told KSBW they are already taking action.

"I don't drink much. I drink at home. That's the only place I feel safe drinking," student Kathi Teague said.

Police said if a friend becomes a victim, it's important to take care of a person who may have been drugged.

"People should really take care of one another. If they see something, they should take some kind of action, not only to make sure their safe but that others around them are safe," UC Santa Cruz Police Chief Nader Oweis said.